Alarm



Nov. 18, 1958 L. ANDROSIGLIO ALARM Filed Nov. 29, 1957 INVENTOR. LUCIO ANDROSlGLIQ BY N M United States Patent ALARM Lucio Androsiglio, North Bergen, N. J. Appiication November 29, 1957, Serial No. 699,859 1 Claim. (Cl. 116-98) My invention relates generally to alarms and specifically to an alarm which will sound when a child is lifted out of a carriage, crib or perambulator.

It is hazardous to leave an infant unguarded since the child may be abducted.

It is among the objects of my invention to provide an alarm which can be triggered to sound when an infant is lifted out of a carriage, crib, perambulator, or the like.

It is another object of my invention to provide an alarm which may be easily shut-off to prevent accidental sound- It is still another object of my invention to provide an alarm which may be easily concealed beneath the infant so as to prevent tampering to render it inoperative.

Still a further object of my invention is to provide an alarm which is set by a key individual to the particular alarm.

A further object of my invention is to provide an alarm which may be easily and cheaply constructed and which may operate without the use of electrical power.

An embodiment of my invention is shown in the appended drawings in which Figure 1 is a top plan view of my alarm.

Figure 2 is a side elevational view of my alarm partially cut away and showing the triggering board in broken lines when in the triggered position.

Figure 3 is a vertical-sectional view of the spring actuator mechanism.

Referring now to the drawings in detail, my invention comprises a base board or platform 11. This platform 11 is supported by legs 12--12 which rest on the bottom 13 of a carriage, crib, perambulator, or the like. A triggering board hinges 15-15 in such a manner that it can pivot upwardly.

A spring actuator 16 is secured to the under side of the platform 11 under the end of the triggering board 14 opposite the hinges 15-15. The spring actuator 16, is comprised of a housing 17, a cap 18 which projects through the top of the housing 17, and a spring 19 which extends between the bottom of the housing 17 and the cap 18 and normally urges the cap 18 upwardly. The cap 18 is provided with an annular flange which engages the top of the housing 17 and prevents the cap from being pushed completely free of the housing by the spring 19. As the cap 18 is urged upwardly it projects through an aperture 21 in the platform 11, contacting the triggering board 11 causing it to pivot upwardly.

Secured to the underside of the platform 11 is a spring wound bell gong or siren of any well known construction, 22 which can be spring Wound. A control pin 23 which actuates the bell, gong, or siren, when it is pulled up- 14 is secured to the platform 11 by wardly, projects upwardly through an aperture 24 in the platform 11 and is secured to the triggering board 14 by the head 25 in threaded engagement with the pin 23. A lock 26 is secured to the platform 11 in such a manner that the latch 27 can engage the unhinged end of the triggering board 14.

A pair of L-shaped detents 28-28 are fastened to the platform 11 and project over the triggering board 14, limiting the extent of its upward motion.

A key 29 may be inserted in the lock 26 to Withdraw the latch 27.

In operation, my alarm assemblage is placed on the bottom of a crib, carriage, perambulator or the like, and the usual mattress is placed over it. The alarm is inoperative by virtue of the latch 27 which extends outwardly over the end of the triggering board 14 thereby preventing its upward movement. The baby is placed on the mattress in the usual fashion and the alarm is rendered potentially operative by withdrawing the latch 27 with the key 29 to permit the triggering board to pivot upwardly. However, the weight of the infant is sufficient to counter balance the upward thrust of the spring 19 and prevent the triggering board from moving. However, if the baby is lifted from the triggering board, it will pivot upwardly under the influence of the spring 19. As the triggering board pivots upwardly, the control pin 23 will also move upwardly, thus causing the bell, gong, or siren to ring and give the alarm. The L-shaped detents 28 are designed to limit to extent of movement of the triggering board 14 so that the control pin will not be torn out of the gong and thereby damage it.

The foregoing description is merely intended to illustrate an embodiment of the invention. The component parts have been shown and described. They each may have substitutes which may perform a substantially similar function; such substitutes may be known as proper substitutes for the said components and may have actually been known or invented before the present invention; these substitutes are contemplated as being within the scope of the appended claim, although they are not specifically catalogued herein.

1 claim:

An alarm comprising a resonating board platform disposed on legs to place the board in spaced relation to the surface upon which it rests, a trigger board hingedly secured at one end to the platform, a spring secured to the platform and normally urging one end of the trigger board to hinge upwardly in response to the spring, said spring being of such thrust as to normally be overcome by the weight of an infant with which the alarm is to be used, an audible alarm attached to the platform, a latch means motivating the alarm, the latch means attached to the trigger board and movable in response to the hinging of the trigger board to release the alarm for making an audible signal, and a detent attached to the platform to limit the upward hinging of the trigger board beyond the point at which it releases the latch of the alarm.

References Cited in the file of this patent UNITED STATES PATENTS 

